Home :: The Observatory :: Instruments :: Spectral Irradiance

The Spectral Irradiance sensor (Sea Bird OCR-507 multispectral radiometer) measures the amount of downwelling radiation (light energy) per unit area that reaches a surface. Radiation is measured and reported separately for a series of seven wavelength bands (412, 443, 490, 510, 555, 620, and 683nm), each between 10-20 nm wide.

Data Products

This instrument measures the following data products. Select a data product's name to learn more.

Data Product Code DPS
Downwelling Spectral Irradiance SPECTIR DPS

The algorithm code used to generate data products for this instrument is also available in the ion-functions GitHub repository.

Algorithm Code

Instrument Models & Deployed Locations

The OOI includes the following instrument makes and models for this instrument type. Follow the links below to find out where in the OOI this instrument has been deployed. You'll also find quick links for each instrument to Data Explorer, where you can plot and access data.

Class-Series Make Model
SPKIRA Sea Bird OCR507 ICSW
SPKIRB Sea Bird OCR507 ICSW
SPKIRJ Sea Bird OCR507 ICSW
Satlantic's fully digital OCR-500 radiometer. (Photo Courtesy of Satlantic LP)
Sea Bird's fully digital OCR-500 radiometer. (Photo Courtesy of Sea Bird Scientific)

Primary Science Discipline

Physical

Research Themes

Access Data

Spectral Irradiance on Data Explorer